JP2005057646A - Remote control transmitter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To emit infrared light at a prescribed angle without arranging an infrared element for transmission arranged in a remote control transmitter at a corner part. <P>SOLUTION: At least one infrared element for transmission converts operation information for an air conditioner to a signal and transmits the signal into a remote control. A reflecting part 3 for reflecting the infrared signal from the infrared element 2 for transmission is configured near the infrared element 2 for transmission. A light transmitting part 4 provided at a vertical surface of the remote control radiates the reflected infrared light. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a remote control transmitter that performs infrared light communication.

  Conventionally, a remote control transmitter using infrared light is equipped with a plurality of infrared elements that convert operation information from a digital signal to an infrared light signal and transmit it. In addition, a translucent part is provided at both corners of the remote control transmitter body, and an infrared element is arranged with the infrared signal emission direction facing the corner part of the translucent part, thereby reducing the infrared radiation angle. (See, for example, Patent Document 1).

Hereinafter, a conventional remote control transmitter will be described with reference to FIG. FIG. 4 is a cross-sectional view showing a configuration of a conventional remote control transmitter. In the figure, an infrared remote control body 7 is provided with a transmission infrared element 8 and a translucent part 9 including a corner part. In the remote control transmitter shown in FIG. 4, a translucent portion 9 is provided on both sides of the corner portion of the remote control transmitter body, and the infrared element 8 is arranged with the emission direction of the infrared signal directed to the corner portion of the translucent portion 9. Therefore, even when the remote control transmitter 7 is placed on the table and operated, the infrared signal enters the infrared receiver of the air conditioner indoor unit.
Japanese Utility Model Publication No. 06-5239

  However, in the conventional configuration described above, the emission direction of the infrared light is divided into two directions using refraction at the corner portion of the light transmitting portion 9. Therefore, there has been a problem that the upper surface corner portion of the remote control transmitter body 7 and both sides thereof must be the light transmitting portions 9 made of infrared light transmitting resin. This not only increased the component cost, but also required a space for installing the infrared device in the corner of the remote control, which led to structural restrictions and design restrictions on the remote control.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a remote control transmitter capable of obtaining an infrared light emission angle with a simple configuration and freely arranging infrared elements.

  In order to achieve this object, a remote control transmitter according to the present invention includes a transmitter main body and at least one transmission red which is arranged inside the transmitter main body and converts operation information to a controlled device to be transmitted. An outer element, and a translucent part disposed in the vicinity of the transmitting infrared element and reflecting the infrared signal from the transmitting infrared element in the vicinity of the transmitting infrared element; At least a part of the infrared signal from the infrared element is reflected by the reflecting portion and emitted from the light transmitting portion.

  With this configuration, an infrared light emission angle can be obtained, and a remote control transmitter that can freely arrange infrared elements can be obtained.

  As described above, according to the present invention, infrared light can be emitted at a predetermined angle without disposing the infrared element at the corner portion of the remote control main body.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is an infrared light communication structure diagram of an air conditioner remote control and an air conditioner indoor unit. In the figure, the infrared remote control 1 is provided with a transmission infrared element 2 and an infrared light reflection unit 3, and the indoor unit 5 of the air conditioner receives an infrared signal transmitted from the remote control 1. Thus, an infrared receiving unit 6 for converting into a digital signal is provided. Here, the remote controller 1 has a shape in which the operation unit and the display unit are inclined with the focus on being operated on a desktop.

  FIG. 2 is a cross-sectional view of the main part of the remote control transmitter for an air conditioner according to Embodiment 1 of the present invention. The remote control main body 1, the infrared element 2 for infrared signal transmission, the reflection unit 3 for reflecting infrared signals, This is a light transmitting portion 4 that is provided on the vertical surface of the remote controller 1 and transmits infrared light.

  A reflector made of aluminum tape is formed on the upper surface of the reflector 3 provided at the lower front portion of the infrared element 2. The reflecting material may be anything as long as it reflects 100% of infrared light such as aluminum coating. The reflecting portion 3 is installed at an angle of 15 ° in the direction perpendicular to the optical axis of the infrared element 2. In addition, the reflection portion 3 has an upper end at a position where the reflection portion 3 intersects an extension line of the optical axis of the infrared element 2.

  At this time, infrared light radiated above the optical axis of the infrared element 2 is directly emitted. Since the radiation angle of the infrared element 2 is about 60 °, direct light is emitted at about 30 ° from the horizontal. On the other hand, since the infrared light radiated below the optical axis of the infrared element 2 is reflected by the reflecting portion 3 having an angle of 15 ° from the optical axis, the infrared light from the infrared element 2 is reflected from the optical axis. Is reflected at an angle α + 15 °. Thereby, the infrared light below the optical axis is radiated from the translucent portion at an angle of about 30 to 60 ° with respect to the horizontal direction.

  That is, by forming the reflecting portion 3 having an inclination of 15 ° with respect to the optical axis of the infrared element 2, even from the light transmitting portion 4 provided on the vertical surface of the remote controller 1, infrared light is emitted at 60 ° from the horizontal. A corner can be realized, and the same effect can be obtained as when the infrared element 2 and the translucent part 4 are installed in the upper corner of the remote controller.

(Embodiment 2)
FIG. 3 is a cross-sectional view of a main part of a remote control transmitter for an air conditioner according to Embodiment 2 of the present invention. Description of portions common to the first embodiment is omitted.

  In the figure, a positioning rib 3a is provided on a part of the reflecting portion 3, and the flange portion of the infrared element 2 is locked to the positioning rib 3a. With this configuration, the infrared element 2 can be reliably locked to the reflecting portion 3 at a predetermined angle, and infrared light can be emitted at the designed angle, thereby improving the reliability of signal transmission. Can be improved.

  As described above, in the embodiment of the present invention, a transmitter main body (hereinafter referred to as a remote controller) having a liquid crystal display and having an operation unit and a display unit inclined with a focus on operation on a desktop, and the remote controller A remote control unit includes a transmission unit having at least one transmission infrared element that converts operation information to the air conditioner into a signal, and a reflection unit that reflects an infrared signal from the transmission infrared element. The infrared signal reflected from the light transmitting portion provided on the vertical surface of the remote control is radiated, and the inclination is 15 ° with respect to the optical axis of the infrared element. A reflection part having a radiant angle is formed, and even from a translucent part provided on the vertical surface of the remote control, an infrared light radiation angle of 60 ° from the horizontal is realized, and the infrared element and the translucent part are provided at the upper corner part of the remote control. The same effect as the installation can be obtained.

  Further, according to the embodiment of the present invention, the reflecting portion for reflecting the infrared signal from the transmitting infrared element has the positioning rib of the transmitting infrared element, and by configuring this, The infrared element 2 can be reliably locked to the reflecting portion 3 at a predetermined angle, and infrared light can be emitted at a designed angle, so that the reliability of signal transmission can be improved.

  Further, in the embodiment of the present invention, the reflecting part that reflects the infrared signal from the transmitting infrared element and the translucent part provided on the vertical surface of the remote control are integrated with each other. The infrared element 2 can be securely locked to the reflector 3 at a predetermined angle, and the angle relative to the remote control body can be defined, and infrared light can be emitted at the designed angle. The reliability of signal transmission can be improved.

Schematic diagram showing the usage state of the remote control transmitter according to the first embodiment of the present invention. Sectional drawing of the remote control transmitter in Embodiment 1 of this invention Sectional drawing of the remote control transmitter in Embodiment 2 of this invention Cross-sectional view of a conventional remote control transmitter

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Remote control 2 Infrared element 3 Reflecting part 4 Translucent part

Claims (3)

A transmitter main body, at least one transmission infrared element which is arranged inside the transmitter main body and converts operation information to the controlled device into a signal and transmits the infrared signal from the transmission infrared element And a translucent part provided on the vertical surface of the transmitter body, and reflecting at least part of the infrared signal from the transmitting infrared element. A remote control transmitter characterized in that the remote control transmitter reflects the light from the light transmitting portion and emits the light from the light transmitting portion. 2. The remote control transmitter according to claim 1, further comprising: a positioning rib for the transmitting infrared element in a reflection portion that reflects an infrared signal from the transmitting infrared element. 2. The remote control transmitter according to claim 1, wherein the reflecting portion for reflecting the infrared signal from the transmitting infrared element and the light transmitting portion provided on the vertical surface of the transmitter body are integrated.

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